CN110252463A - A kind of abrasion-proof structure and preparation method thereof being easily repaired - Google Patents
A kind of abrasion-proof structure and preparation method thereof being easily repaired Download PDFInfo
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- CN110252463A CN110252463A CN201910549767.2A CN201910549767A CN110252463A CN 110252463 A CN110252463 A CN 110252463A CN 201910549767 A CN201910549767 A CN 201910549767A CN 110252463 A CN110252463 A CN 110252463A
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- wear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/30—Shape or construction of rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/30—Shape or construction of rollers
- B02C4/305—Wear resistant rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The present invention relates to wear-proof technique fields, a kind of abrasion-proof structure and preparation method thereof being easily repaired is provided, it is successively wear-resisting transition zone I outside matrix, wear-resisting transition zone II and wearable overlay, hard alloy bar lower end and matrix top, whole and wear-resisting II lower part through hole of the transition zone cooperation of wear-resisting transition zone I and glue inlay connection, and it is connect with wear-resisting II top of transition zone by the way that ring metallurgy is welded and fixed, protruding between the hard alloy bar of wear-resisting transition zone II is wearable overlay, hard alloy bar top is 0-3mm lower than hardfacing layer surface, wearable overlay covers entire wearing piece surface.Matrix excellent in mechanical performance of the present invention, hard alloy bar effectively increases its wearability, ring, which is welded and fixed, ensure that hard alloy bar is still connected firmly with wear-resisting transition zone II without falling off when product needs to repair, the design of two layers of wear-resisting transition zone can product surface without the pre-heat treatment direct Bead weld repair, it is convenient and efficient, it is the innovation in terms of wear-proof technique.
Description
Technical field
The present invention relates to wear-proof technique field, specifically a kind of abrasion-proof structure and preparation method thereof being easily repaired.
Background technique
The machinery such as roll squeezer, Vertical Mill, crusher, shield machine are cement, mine, electric power, coal, chemical industry, subway, tunnel etc.
The widely applied grinding of industry and heading equipment, mainly by the wear-out parts group such as compression roller, grinding roller, tup, liner plate, sieve plate, cutter ring
At, during long-term work, product, which is easy to produce, to be seriously worn, and it needs to frequently replace and repairs, the decline of equipment operation efficiency,
Energy consumption improves.
The wearing piece of traditional homogenous material (such as rich chromium cast iron, potassium steel) production, matrix brittleness is big, intensity is low, safety
The poor and rate of wear is fast, consumption is big, cost performance is low for property.Mostly use the higher middle carbon of intensity rank in the industry greatly at this stage
It is strong to efficiently solve matrix as matrix, matrix surface tungsten carbide button stick or build-up wear-resistant layer or both dual-purpose for steel alloy
The problem of degree and surface layer abrasion.But such technical solution has following defects that
1) carbon content of matrix and alloy content are high, cause its weldability poor, when build-up wear-resistant layer be easy to happen MATRIX CRACKING and
Wearing layer peeling phenomenon, in order to avoid the technological measure that the generation of this phenomenon is handled frequently with weld preheating, build-up wear-resistant layer
It still needs to carry out the pre-heat treatment, time consumption and energy consumption when being repaired again after ruing out of, and online reparation is difficult；
2) common hard alloy bar and matrix are combined with the methods of interference fit, splicing, soldering connection, cannot be with matrix
Hard alloy bar is easy to happen showing for spalling matrix when forming firm metallurgical bonding and having the disadvantage in that 1. interference fit
As；2. temperature, which is more than 120 DEG C, when working after being glued will cause colloid liquefaction trickling, make part failure and pollution working face；3. pricker
The intensity of weldering is low, the poor bonding strength of hard alloy bar and matrix, be easy to cause falling off for hard alloy bar in the course of work.
How to solve the above problems is the task of top priority of scientific and technological person works in the industry.
Summary of the invention
For above situation, to solve prior art defect, it is an object of the present invention to provide it is a kind of be easily repaired it is wear-resisting
Structure and preparation method thereof can effectively extend the service life of wearing piece and be easily repaired.
The present invention adopts the following technical scheme:
A kind of abrasion-proof structure being easily repaired, including matrix, wear-resisting transition zone I, wear-resisting transition zone II, hard alloy bar, welding
Closed-loop and wearable overlay, which is characterized in that be wear-resisting transition zone I in described matrix, be wear-resisting transition on wear-resisting transition zone I
Layer II is wearable overlay on wear-resisting transition zone II；
Matrix, wear-resisting transition zone I and the wear-resisting transition zone II opens up stepped hole after being linked together, stepped hole includes lower part
The macropore of aperture and top, wherein macropore is located at the top of wear-resisting transition zone II, and aperture includes bottom hole, mider hole and top
Hole, bottom hole are located at matrix top, and mider hole runs through wear-resisting transition zone I, and upper hole is located at the lower part of wear-resisting transition zone II；
The hard alloy bar includes lower barred body, middle barred body and upper barred body；
The lower barred body insertion aperture is simultaneously connected by the hole wall of glue and aperture, and welded closure is equipped between middle barred body and macropore
Ring, upper barred body protrude wear-resisting transition zone II, are wearable overlay between upper barred body；
The top of the hard alloy bar is 0-3mm lower than hardfacing layer surface, and wearable overlay covers entire wearing piece
Surface.
The length of the hard alloy bar is 40mm-80mm；The diameter of the hard alloy bar is 3mm-30mm,
The diameter of hard alloy bar is different in same abrasion-proof structure, and the hard alloy bar of different-diameter is uniformly distributed.
The inside and outside semidiameter of the welded closure ring is 3mm-8mm, and welding ring is closed with a thickness of 2mm-3mm.
The wear-resisting transition zone I with a thickness of 8mm-35mm, wear-resisting transition zone II with a thickness of 3mm-15mm, wear-resisting heap
Layer with a thickness of 5mm-10mm.
A kind of preparation method for the abrasion-proof structure being easily repaired, include the following steps: to prepare matrix → first time preheating →
I → second preheating of build-up wear-resistant transition zone → build-up wear-resistant II → destressing heat treatment of transition zone → is opened stepped hole → hard and is closed
Golden stick gluing → hard alloy bar insertion stepped hole aperture → preparation welded closure ring → build-up wear-resistant overlay cladding.
The first time preheating temperature is 180 DEG C -350 DEG C.
The welding material ingredient percent of the build-up wear-resistant transition zone I are as follows: C 0.05%-0.3%, Mn 1%-
12%, Si 1%-3%, Cr 1%-15%, Ni 1%-12%, Mo 1%-12%, welding current 400A-550A, weldingvoltage 25V-30V,
Speed of welding 300mm/min-600mm/min.
Second of preheating temperature is 80 DEG C -120 DEG C.
The welding material ingredient percent of the build-up wear-resistant transition zone II are as follows: C 0.05%-0.5%, Mn 3%-
25%, Si 2%-5%, Cr 6%-30%, Ni 3%-20%, Mo 3%-15%, Nb 0.05%-5%, Ti 0.05%-5%, welding current
380A-500A, weldingvoltage 22V-26V, speed of welding 280mm/min-550mm/min.
The destressing heat treatment step are as follows: 1. rise to 450 DEG C -580 from room temperature with the speed of 20 DEG C/h-50 DEG C/h
℃；2. keeping the temperature 5h-20h；3. being cooled to 200 DEG C with the speed of 20 DEG C/h-50 DEG C/h；4. being air-cooled to room temperature.
The welded closure ring be using welding manner fill up stepped hole macropore and hard alloy bar middle barred body it
Between gap.
The invention has the following advantages:
1) matrix is medium carbon alloy steel, and mechanical property is good, the excellent comprehensive mechanical property of entire product；
2) by build-up wear-resistant transition zone I after matrix progress the pre-heat treatment, it is ensured that matrix and wear-resisting transition zone I do not crack
And fusion character is good；Build-up wear-resistant transition zone II after the pre-heat treatment of second of lower temperature, the preheating of different temperatures twice and not
Built-up welding with wlding ingredient forms last wear-resisting transition zone II, on wear-resisting transition zone II can direct build-up wear-resistant overlay cladding, no
The pre-heat treatment is needed again；Expose hard alloy bar after wearable overlay abrasion, when carrying out Bead weld repair between hard alloy bar,
Because here is the wear-resisting transition zone II of manganese, chromium, nickel, molybdenum, niobium, titanium elements composition, surface can directly carry out multiple heap repair welding
It is multiple, it is no longer necessary to the pre-heat treatment, it is convenient and efficient；
3) cooperation of the aperture through hole of the lower barred body of hard alloy bar and stepped hole and glue sticking, ensure that determining for hard alloy bar
Position and fixation, then fill up the gap in wear-resisting transition zone II and hard alloy bar between barred body with welding manner, form welding
Closed-loop forms metallurgical bonding between the middle barred body and wear-resisting transition zone II of hard alloy bar, ensure that product is in and needs to repair
The middle barred body of hard alloy bar can also be connected firmly with wear-resisting transition zone II when multiple situation, be not in that hard alloy bar falls off now
As, and work when even if temperature is excessively high cause glue to melt when liquid glue and also will not drop down out, be cooled to room temperature rear glue and solidify,
Working face is not polluted；
4) hard alloy bar is combined with wearable overlay, effectively increases the wear-resisting property of product surface.
Detailed description of the invention
Fig. 1 is the broken section after a kind of each component connection of abrasion-proof structure being easily repaired of the present invention and preparation method thereof
Figure；
Fig. 2 is enlarged drawing at a in a kind of Fig. 1 of abrasion-proof structure being easily repaired of the present invention and preparation method thereof；
Fig. 3 is a kind of matrix build-up wear-resistant transition zone I of abrasion-proof structure being easily repaired of the present invention and preparation method thereof and wear-resisting
The partial sectional view of stepped hole is provided with after transition zone II；
Fig. 4 is the stepped hole and each position life of hard alloy bar of a kind of abrasion-proof structure being easily repaired of the present invention and preparation method thereof
Name schematic diagram.
Description of symbols: 1, matrix, 2, wear-resisting transition zone I, 3, wear-resisting transition zone II, 4, hard alloy bar, 4-1, under
Barred body, 4-2, middle barred body, 4-3, lower barred body, 5, welded closure ring, 6, wearable overlay, 7, stepped hole, 7-1, aperture, 7-1-1,
Bottom hole, 7-1-2, mider hole, 7-1-3, upper hole, 7-2, macropore, 8, glue.
Specific embodiment
Below in conjunction with attached drawing of the invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments, protection model of the invention
Enclose be not limited to it is as described below.
In the description of the present invention, it is to be understood that, term " on ", " in ", "lower", "top", "bottom", "inner", "outside"
The orientation or positional relationship of equal instructions is to be based on the orientation or positional relationship shown in the drawings, be merely for convenience of the description present invention and
Simplify description, rather than the device or component of indication or suggestion meaning must have a particular orientation and with specific orientation constructions
And operation, therefore be not considered as limiting the invention.
As shown in Figures 1 to 4, a kind of abrasion-proof structure being easily repaired, including matrix 1, wear-resisting transition zone I 2, wear-resisting transition
Layer II 3, hard alloy bar 4, welded closure ring 5 and wearable overlay 6, which is characterized in that be wear-resisting transition zone in described matrix 1
I 2, it is wear-resisting transition zone II 3 on wear-resisting transition zone I 2, is wearable overlay 6 on wear-resisting transition zone II 3；
Matrix 1, wear-resisting transition zone I 2 and the wear-resisting transition zone II 3 opens up stepped hole 7 after being linked together, and stepped hole 7 includes
The aperture 7-1 of the lower part and macropore 7-2 on top, wherein macropore 7-2 is located at the top of wear-resisting transition zone II 3, under aperture 7-1 includes
Portion hole 7-1-1, mider hole 7-1-2 and upper hole 7-1-3, bottom hole 7-1-1 are located at 1 top of matrix, and mider hole 7-1-2 is through resistance to
It grinds transition zone I (2), upper hole 7-1-3 is located at the lower part of wear-resisting transition zone II 3；
The hard alloy bar 4 includes lower barred body 4-1, middle barred body 4-2 and upper barred body 4-3；
The lower barred body 4-1 insertion aperture 7-1 is simultaneously connect by glue 8 with the hole wall of aperture 7-1, middle barred body 4-2 and macropore 7-2
Between be equipped with welded closure ring 5, it is wearable overlay 6 between upper barred body 4-3 that upper barred body 4-3, which protrudes wear-resisting transition zone II 3,；
The top of the hard alloy bar 4 is 0-3mm lower than 6 surface of wearable overlay, and wearable overlay 6 covers entire wearing piece
Surface.
The length of the hard alloy bar 4 is 40mm-80mm；The diameter of the hard alloy bar 4 is 3mm-30mm,
The diameter of hard alloy bar 4 is different in same abrasion-proof structure, and the hard alloy bar 4 of different-diameter is uniformly distributed, can have in this way
Effect improves the distribution of stress point, improves the wearability of structure.
The inside and outside semidiameter of the welded closure ring 5 be 3mm-8mm, welding ring seal 5 with a thickness of 2mm-3mm.
The wear-resisting transition zone I 2 with a thickness of 8mm-35mm, wear-resisting transition zone II 3 with a thickness of 3mm-15mm, it is wear-resisting
Overlay cladding 6 with a thickness of 5mm-10mm.
A kind of preparation method for the abrasion-proof structure being easily repaired, include the following steps: to prepare matrix 1 → first time preheating →
Stepped hole 7 → hard is opened in I 2 → second preheating of build-up wear-resistant transition zone → build-up wear-resistant II 3 → destressing heat treatment of transition zone →
Aperture 7-1 → preparation welded closure ring 5 → build-up wear-resistant heap of 48 → hard alloy bar of gluing 4 of matter alloy bar insertion stepped hole 7
Layer 6.
The matrix 1 is prepared using medium carbon alloy steel, and mechanical property is good, the excellent comprehensive mechanical property of entire product.
The first time preheating temperature is 180 DEG C -350 DEG C.
The welding material ingredient percent of the build-up wear-resistant transition zone I 2 are as follows: C 0.05%-0.3%, Mn 1%-
12%, Si 1%-3%, Cr 1%-15%, Ni 1%-12%, Mo 1%-12%, welding current 400A-550A, weldingvoltage 25V-30V,
Speed of welding 300mm/min-600mm/min.
Second of preheating temperature is 80 DEG C -120 DEG C.
The build-up wear-resistant transition zone II 3 on wear-resisting transition zone I 2, the twice preheating of different temperatures and different wlding ingredients
Built-up welding, can form last wear-resisting transition zone II 3, on wear-resisting transition zone II 3 can direct build-up wear-resistant overlay cladding 6, no longer need
Expose the upper barred body 4-3 of hard alloy bar 4 after wanting the pre-heat treatment, wearable overlay 6 to wear, carries out built-up welding between upper barred body 4-3
It, in this way can be in wear-resisting transition zone because being below the wear-resisting transition zone II 3 of manganese, chromium, nickel, molybdenum, niobium, titanium elements composition when reparation
II 3 surfaces directly carry out multiple Bead weld repair, no longer need the pre-heat treatment, are easily repaired.
The welding material ingredient percent of the build-up wear-resistant transition zone II 3 are as follows: C 0.05%-0.5%, Mn 3%-
25%, Si 2%-5%, Cr 6%-30%, Ni 3%-20%, Mo 3%-15%, Nb 0.05%-5%, Ti 0.05%-5%, welding current
380A-500A, weldingvoltage 22V-26V, speed of welding 280mm/min-550mm/min.
The destressing heat treatment step are as follows: 1. rise to 450 DEG C -550 from room temperature with the speed of 20 DEG C/h-50 DEG C/h
℃；2. keeping the temperature 5h-20h；3. being cooled to 200 DEG C with the speed of 20 DEG C/h-50 DEG C/h；4. being air-cooled to room temperature.It goes to answer through reaching in this way
Welding stress can be effectively eliminated after power heat treatment, guarantees the service performance of structure.
The welded closure ring 5 is in the macropore 7-2 and hard alloy bar 4 for fill up stepped hole 7 using welding manner
Gap between barred body 4-2 and formed, glue 8 can both have been closed in this way, can also be by middle barred body 4-2 and wear-resisting transition zone II 2
It links together, forms metallurgical bonding between middle barred body 4-2 and wear-resisting transition zone II 3, ensure that product is in and need to repair shape
Barred body 4-2 can also be connected firmly with wear-resisting transition zone II 3 in when condition, be not in the phenomenon that hard alloy bar 4 falls off, Er Qiegong
When making even if temperature it is excessively high cause glue 8 melt when liquid glue will not drop down out, be cooled to room temperature rear glue and solidify, to working face
Do not pollute.
The welding material ingredient of the wearable overlay 6 are as follows: crome metal 40%-45%, electrode graphite 5%-9%, marble 2%-
4%, chromium carbide 1%-3%, electrolytic manganese metal 1%-4%, ferrosilicon 3%-6%, molybdenum 4%-6%, nickel 6%-10%, ferro-boron 2%-4%, niobium 0.5%-
3%, tungsten 0.5%-3.0%, rare earth 0.5%-1%, surplus are FHY100.25 reduced iron powder；Using DC reverse connection method, gage of wire
1.6mm-3.2mm, welding current 300A-450A, weldingvoltage 26V-30V, speed of welding 350mm/min-500mm/min.
Embodiment 1:
1) 40CrNi2Mo compression roller is prepared.
2) to compression roller matrix carry out the pre-heat treatment, 350 DEG C of the pre-heat treatment.
3) in press roll surface build-up wear-resistant transition zone I, the welding material ingredient percent of wear-resisting transition zone I are as follows: C
0.3%, Mn 12%, Si 3%, Cr 15%, Ni 12%, Mo 12%；Welding current 400A, weldingvoltage 25V, speed of welding
300mm/min, wear-resisting transition zone I with a thickness of 8mm.
4) second of the pre-heat treatment, temperature are 120 DEG C.
5) the build-up wear-resistant transition zone II on wear-resisting transition zone I, the welding material composition quality hundred of wear-resisting transition zone II
Divide ratio are as follows: C 0.5%, Mn 25%, Si 5%, Cr 30%, Ni 20%, Mo 15%, Nb 5%, Ti 5%；Welding current 500A, welding
Voltage 26V, speed of welding 550mm/min, wear-resisting transition zone II with a thickness of 4.5mm.
6) destressing heat treatment the steps include: 1. to rise to 450 DEG C -580 DEG C from room temperature with the speed of 20 DEG C/h-50 DEG C/h；
2. keeping the temperature 5h-20h；3. being cooled to 200 DEG C with the speed of 20 DEG C/h-50 DEG C/h；4. being air-cooled to room temperature.
7) stepped hole is outputed, the diameter in hole is respectively 6mm, 12mm, and the depth in hole mutually should be 18mm, 2mm.
8) hard alloy pole is prepared.
9) it is embedded in the aperture of stepped hole after the lower end of hard alloy pole being applied HY-303 glue.
10) gap between wear-resisting transition zone II and hard alloy bar is filled up by the way of welding, forms welded closure
Ring.
11) build-up wear-resistant overlay cladding, welding material ingredient are as follows: crome metal 40%- between the upper barred body of protrusion transition zone II
45%, electrode graphite 5%-9%, marble 2%-4%, chromium carbide 1%-3%, electrolytic manganese metal 1%-4%, ferrosilicon 3%-6%, molybdenum 4%-6%,
Nickel 6%-10%, ferro-boron 2%-4%, niobium 0.5%-3%, tungsten 0.5%-3.0%, rare earth 0.5%-1%, surplus are FHY100.25 reduced iron powder；
Using DC reverse connection method, gage of wire 1.6mm, welding current 300A, weldingvoltage 26V, speed of welding 350mm/min are wear-resisting
Overlay cladding with a thickness of 5mm.
Embodiment 2:
1) 42CrMo grinding roller of vertical mill is prepared.
2) to grinding roller of vertical mill matrix carry out the pre-heat treatment, 260 DEG C of the pre-heat treatment.
3) in the wear-resisting transition zone I of grinding roller of vertical mill surface overlaying, the welding material ingredient percent of wear-resisting transition zone I
Are as follows: C 0.1%, Mn 8%, Si 2%, Cr 10%, Ni 8%, Mo 7%, welding current 480A, weldingvoltage 28V, speed of welding
420mm/min, wear-resisting transition zone I with a thickness of 20mm.
4) second of the pre-heat treatment, temperature are 100 DEG C.
5) the build-up wear-resistant transition zone II on wear-resisting transition zone I, the welding material composition quality hundred of wear-resisting transition zone II
Divide ratio are as follows: C 0.3%, Mn 14%, Si 3.5%, Cr 18%, Ni 12%, Mo 9%, Nb 3%, Ti 3%, welding current 380A, weldering
Meet voltage 22V, speed of welding 280mm/min, wear-resisting transition zone II with a thickness of 3.5mm.
6) destressing heat treatment the steps include: 1. to rise to 450 DEG C -580 DEG C from room temperature with the speed of 20 DEG C/h-50 DEG C/h；
2. keeping the temperature 5h-20h；3. being cooled to 200 DEG C with the speed of 20 DEG C/h-50 DEG C/h；4. being air-cooled to room temperature.
7) stepped hole is outputed, the diameter in hole is respectively 6mm, 16mm, and the depth in hole mutually should be 28mm, 2mm.
8) hard alloy pole is prepared.
9) it is embedded in the aperture of stepped hole after the lower end of hard alloy pole being applied HY-303 glue.
10) gap between wear-resisting transition zone II and hard alloy bar is filled up by the way of welding, forms welded closure
Ring.
11) build-up wear-resistant overlay cladding, welding material ingredient are as follows: crome metal 40%- between the upper barred body of protrusion transition zone II
45%, electrode graphite 5%-9%, marble 2%-4%, chromium carbide 1%-3%, electrolytic manganese metal 1%-4%, ferrosilicon 3%-6%, molybdenum 4%-6%,
Nickel 6%-10%, ferro-boron 2%-4%, niobium 0.5%-3%, tungsten 0.5%-3.0%, rare earth 0.5%-1%, surplus are FHY100.25 reduced iron powder；
Using DC reverse connection method, gage of wire 2.8mm, welding current 390A, weldingvoltage 28V, speed of welding 420mm/min are wear-resisting
Overlay cladding with a thickness of 8mm.
Embodiment 3:
1) 35CrMo wear-resistant liner is prepared.
2) to wear-resistant liner matrix carry out the pre-heat treatment, 180 DEG C of the pre-heat treatment.
3) in the wear-resisting transition zone I of wear-resistant liner surface overlaying, the welding material ingredient percent of wear-resisting transition zone I
Are as follows: C 0.05%, Mn 1%, Si 1%, Cr 1%, Ni 1%, Mo 1%, welding current 550A, weldingvoltage 30V, speed of welding
600mm/min., wear-resisting transition zone I with a thickness of 35mm.
4) second of the pre-heat treatment, temperature are 80 DEG C.
5) the build-up wear-resistant transition zone II on wear-resisting transition zone I, the welding material composition quality hundred of wear-resisting transition zone II
Divide ratio are as follows: C 0.05%, Mn 3%, Si 2%, Cr 6%, Ni 3%, Mo 3%, Nb 0.05%, Ti 0.05%, welding current 500A,
Weldingvoltage 26V, speed of welding 550mm/min, wear-resisting transition zone II with a thickness of 6mm.
6) destressing heat treatment the steps include: 1. to rise to 450 DEG C -580 DEG C from room temperature with the speed of 20 DEG C/h-50 DEG C/h；
2. keeping the temperature 5h-20h；3. being cooled to 200 DEG C with the speed of 20 DEG C/h-50 DEG C/h；4. being air-cooled to room temperature.
7) stepped hole is outputed, the diameter in hole is respectively 6mm, 22mm, and the depth in hole mutually should be 46mm, 3mm.
8) hard alloy pole is prepared.
9) it is embedded in the aperture of stepped hole after the lower end of hard alloy pole being applied HY-303 glue.
10) gap between wear-resisting transition zone II and hard alloy bar is filled up by the way of welding, forms welded closure
Ring.
11) build-up wear-resistant overlay cladding, welding material ingredient are as follows: crome metal 40%- between the upper barred body of protrusion transition zone II
45%, electrode graphite 5%-9%, marble 2%-4%, chromium carbide 1%-3%, electrolytic manganese metal 1%-4%, ferrosilicon 3%-6%, molybdenum 4%-6%,
Nickel 6%-10%, ferro-boron 2%-4%, niobium 0.5%-3%, tungsten 0.5%-3.0%, rare earth 0.5%-1%, surplus are FHY100.25 reduced iron powder；
Using DC reverse connection method, gage of wire 3.2mm, welding current 450A, weldingvoltage 30V, speed of welding 500mm/min are wear-resisting
Overlay cladding with a thickness of 10mm.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, and it is other it is any without departing from the spirit and principles of the present invention made by change, modification, substitution, combination, letter
Change, is included within the scope of the present invention.
Claims (10)
1. a kind of abrasion-proof structure being easily repaired, including matrix (1), wear-resisting transition zone I (2), wear-resisting transition zone II (3), hard
Alloy bar (4), welded closure ring (5) and wearable overlay (6), which is characterized in that be wear-resisting transition zone I in described matrix (1)
(2), it is wear-resisting transition zone II (3) on wear-resisting transition zone I (2), is wearable overlay (6) on wear-resisting transition zone II (3)；
Matrix (1), wear-resisting transition zone I (2) and the wear-resisting transition zone II (3) opens up stepped hole (7), step after being linked together
Hole (7) includes the aperture (7-1) of lower part and the macropore (7-2) on top, and wherein macropore (7-2) is located at wear-resisting transition zone II (3)
Top, aperture (7-1) include bottom hole (7-1-1), mider hole (7-1-2) and upper hole (7-1-3), the position bottom hole (7-1-1)
In matrix (1) top, mider hole (7-1-2) runs through wear-resisting transition zone I (2), and upper hole (7-1-3) is located at wear-resisting transition zone II
(3) lower part；
The hard alloy bar (4) includes lower barred body (4-1), middle barred body (4-2) and upper barred body (4-3)；
Lower barred body (4-1) insertion aperture (7-1) is simultaneously connect by glue (8) with the hole wall of aperture (7-1), middle barred body (4-
2) welded closure ring (5) are equipped between macropore (7-2), upper barred body (4-3) protrudes wear-resisting transition zone II (3), upper barred body (4-3)
Between be wearable overlay (6)；
The top of the hard alloy bar (4) is 0-3mm lower than wearable overlay (6) surface, and wearable overlay (6) covering is entire
The surface of wearing piece.
2. the abrasion-proof structure according to claim 1 being easily repaired, which is characterized in that the hard alloy bar (4)
Length is 40mm-80mm；The diameter of the hard alloy bar (4) is 3mm-30mm, the hard alloy in same abrasion-proof structure
The diameter of stick (4) is different, and the hard alloy bar (4) of different-diameter is uniformly distributed.
3. the abrasion-proof structure according to claim 1 being easily repaired, which is characterized in that the welded closure ring (5)
Inside and outside semidiameter be 3mm-8mm, welding ring seal (5) with a thickness of 2mm-3mm.
4. the abrasion-proof structure according to claim 1 being easily repaired, which is characterized in that the wear-resisting transition zone I (2)
With a thickness of 8mm-35mm, wear-resisting transition zone II (3) with a thickness of 3mm-15mm, wearable overlay (6) with a thickness of 5mm-10mm.
5. a kind of preparation method for realizing the abrasion-proof structure described in claim 1 being easily repaired, which is characterized in that including as follows
Step: matrix (1) → first time preheating → build-up wear-resistant transition zone I (2) → second of preheating → build-up wear-resistant transition zone is prepared
Open stepped hole (7) → hard alloy bar (4) gluing (8) → hard alloy bar (4) insertion step in II (3) → destressing heat treatment →
The aperture (7-1) in hole (7) → preparation welded closure ring (5) → build-up wear-resistant overlay cladding (6).
6. the preparation method of the abrasion-proof structure according to claim 5 being easily repaired, which is characterized in that the first time
Preheating temperature is 180 DEG C -350 DEG C, and second of preheating temperature is 80 DEG C -120 DEG C.
7. the preparation method of the abrasion-proof structure according to claim 5 being easily repaired, which is characterized in that the built-up welding is resistance to
Grind the welding material ingredient percent of transition zone I (2) are as follows: C 0.05%-0.3%, Mn 1%-12%, Si 1%-3%, Cr 1%-
15%, Ni 1%-12%, Mo 1%-12%, welding current 400A-550A, weldingvoltage 25V-30V, speed of welding 300mm/min-
600mm/min。
8. the preparation method of the abrasion-proof structure according to claim 5 being easily repaired, which is characterized in that the built-up welding is resistance to
Grind the welding material ingredient percent of transition zone II (3) are as follows: C 0.05%-0.5%, Mn 3%-25%, Si 2%-5%, Cr
6%-30%, Ni 3%-20%, Mo 3%-15%, Nb 0.05%-5%, Ti 0.05%-5%, welding current 380A-500A, weldingvoltage
22V-26V, speed of welding 280mm/min-550mm/min.
9. the preparation method of the abrasion-proof structure according to claim 5 being easily repaired, which is characterized in that the destressing
Heat treatment step are as follows: 1. rise to 450 DEG C -580 DEG C from room temperature with the speed of 20 DEG C/h-50 DEG C/h；2. keeping the temperature 5h-20h；3. with 20
DEG C/speed of h-50 DEG C/h is cooled to 200 DEG C；4. being air-cooled to room temperature from 200 DEG C.
10. the preparation method of the abrasion-proof structure according to claim 5 being easily repaired, which is characterized in that the welding
Closed-loop (5) be using welding manner fill up stepped hole (7) macropore (7-2) and hard alloy bar (4) middle barred body (4-2) it
Between gap.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110846582A (en) * | 2019-12-23 | 2020-02-28 | 浙江联创焊接技术有限公司 | Squeeze roller sleeve in roller press and preparation method thereof |
| CN111515366A (en) * | 2020-06-11 | 2020-08-11 | 郑州机械研究所有限公司 | Preparation method of wear-resistant structure |
| CN111760636A (en) * | 2020-07-03 | 2020-10-13 | 浙江申轮水泥机械制造有限公司 | Roll sleeve of roll squeezer and manufacturing process thereof |
| CN112170958A (en) * | 2020-09-24 | 2021-01-05 | 江苏友和工具有限公司 | Laser welding process for hard alloy cutter head containing transition layer |
| CN113368959A (en) * | 2021-06-11 | 2021-09-10 | 郑州机械研究所有限公司 | Wear-resistant structure without damaging parent and preparation method thereof |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57146461A (en) * | 1981-03-04 | 1982-09-09 | Mitsubishi Heavy Ind Ltd | Roll for dual centrifugal casting |
| US20110008569A1 (en) * | 2009-07-09 | 2011-01-13 | Madok John H | Wear-resistant attachments for high-wear applications |
| CN102302965A (en) * | 2011-07-22 | 2012-01-04 | 宁波富仕达电力工程有限责任公司 | Grinding roller surfacing structure of coal grinding machine |
| CN103089794A (en) * | 2011-11-08 | 2013-05-08 | 胡合红 | Wear resistant shaft |
| CN103658929A (en) * | 2013-12-12 | 2014-03-26 | 攀枝花钢城集团有限公司 | Method for repairing and manufacturing bending roll in surfacing mode |
| CN104889367A (en) * | 2015-04-29 | 2015-09-09 | 河北泰铭投资集团有限公司 | Compositely-cast ceramic cement vertical mill roller sleeve and manufacturing method |
| CN105750691A (en) * | 2014-12-15 | 2016-07-13 | 重庆迅升机车配件有限公司 | Single toothed-roller bead-welding repairing technology |
| CN106076480A (en) * | 2016-07-07 | 2016-11-09 | 江苏双发机械有限公司 | A kind of roll squeezer alloy roller shell and processing method thereof |
| WO2017035921A1 (en) * | 2015-08-28 | 2017-03-09 | 南通高欣耐磨科技股份有限公司 | Manufacturing method for detachable ceramic alloy composite grinding roller |
| CN107150455A (en) * | 2017-06-01 | 2017-09-12 | 江苏双发机械有限公司 | A kind of composite casting hard alloy stud pressure roller and manufacture method |
| CN109681222A (en) * | 2019-03-05 | 2019-04-26 | 郑州机械研究所有限公司 | One kind inlaying built-up welding convolution hobboing cutter cutter ring |
| CN109876898A (en) * | 2019-03-05 | 2019-06-14 | 郑州机械研究所有限公司 | A kind of grinding roller of vertical mill with surface transverse gradients hardness |
-
2019
- 2019-06-24 CN CN201910549767.2A patent/CN110252463B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57146461A (en) * | 1981-03-04 | 1982-09-09 | Mitsubishi Heavy Ind Ltd | Roll for dual centrifugal casting |
| US20110008569A1 (en) * | 2009-07-09 | 2011-01-13 | Madok John H | Wear-resistant attachments for high-wear applications |
| CN102302965A (en) * | 2011-07-22 | 2012-01-04 | 宁波富仕达电力工程有限责任公司 | Grinding roller surfacing structure of coal grinding machine |
| CN103089794A (en) * | 2011-11-08 | 2013-05-08 | 胡合红 | Wear resistant shaft |
| CN103658929A (en) * | 2013-12-12 | 2014-03-26 | 攀枝花钢城集团有限公司 | Method for repairing and manufacturing bending roll in surfacing mode |
| CN105750691A (en) * | 2014-12-15 | 2016-07-13 | 重庆迅升机车配件有限公司 | Single toothed-roller bead-welding repairing technology |
| CN104889367A (en) * | 2015-04-29 | 2015-09-09 | 河北泰铭投资集团有限公司 | Compositely-cast ceramic cement vertical mill roller sleeve and manufacturing method |
| WO2017035921A1 (en) * | 2015-08-28 | 2017-03-09 | 南通高欣耐磨科技股份有限公司 | Manufacturing method for detachable ceramic alloy composite grinding roller |
| CN106076480A (en) * | 2016-07-07 | 2016-11-09 | 江苏双发机械有限公司 | A kind of roll squeezer alloy roller shell and processing method thereof |
| CN107150455A (en) * | 2017-06-01 | 2017-09-12 | 江苏双发机械有限公司 | A kind of composite casting hard alloy stud pressure roller and manufacture method |
| CN109681222A (en) * | 2019-03-05 | 2019-04-26 | 郑州机械研究所有限公司 | One kind inlaying built-up welding convolution hobboing cutter cutter ring |
| CN109876898A (en) * | 2019-03-05 | 2019-06-14 | 郑州机械研究所有限公司 | A kind of grinding roller of vertical mill with surface transverse gradients hardness |
Non-Patent Citations (2)
| Title |
|---|
| 美国金属学会, 北京：机械工业出版社 * |
| 聂祯华;眭向荣;马计平;刘景凤;白波;段斌;宋世旭;: "无缝钢管芯棒堆焊修复制造技术" * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110846582A (en) * | 2019-12-23 | 2020-02-28 | 浙江联创焊接技术有限公司 | Squeeze roller sleeve in roller press and preparation method thereof |
| CN111515366A (en) * | 2020-06-11 | 2020-08-11 | 郑州机械研究所有限公司 | Preparation method of wear-resistant structure |
| CN111760636A (en) * | 2020-07-03 | 2020-10-13 | 浙江申轮水泥机械制造有限公司 | Roll sleeve of roll squeezer and manufacturing process thereof |
| CN112170958A (en) * | 2020-09-24 | 2021-01-05 | 江苏友和工具有限公司 | Laser welding process for hard alloy cutter head containing transition layer |
| CN112170958B (en) * | 2020-09-24 | 2023-03-10 | 江苏友和工具有限公司 | Laser welding process for hard alloy cutter head containing transition layer |
| CN113368959A (en) * | 2021-06-11 | 2021-09-10 | 郑州机械研究所有限公司 | Wear-resistant structure without damaging parent and preparation method thereof |
| CN114603200A (en) * | 2022-05-12 | 2022-06-10 | 四川精诚致远门窗工程有限公司 | Cutting device for door and window aluminum profiles |
| CN114603200B (en) * | 2022-05-12 | 2022-10-11 | 四川精诚致远门窗工程有限公司 | Cutting device for door and window aluminum profiles |
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